Starter motor for an engine



FIG. 1 is a perspective view of a starter motor for an engine showing my new design;

FIG. 2 is a top plan view thereof, the bottom being a mirror image;

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 4 is a front end elevational view thereof; and

FIG. 5 is a rear end elevational view thereof. 

The ornamental design for a starter motor for an engine, as shown and described. 